Quickling
From Wilds of Eldraine Commander set
Quickling
Creature — Faerie Rogue
2/2
Flash (You may cast this spell any time you could cast an instant.)
Flying
When this creature enters, sacrifice it unless you return another creature you control to its owner's hand.
Rulings
- If you control no other creatures when the enters-the-battlefield ability resolves, you must sacrifice Quickling.